Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 03-09-2019 and time 19:44:30 (Italy) in region 2 km W San Michele di Ganzaria (CT)

A magnitude ML 1.3 earthquake occured in region: 2 km W San Michele di Ganzaria (CT), on

  • 03-09-2019 17:44:30 (UTC)
  • 03-09-2019 19:44:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.2750, 14.4000 at 36 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
San Michele di Ganzaria CT 2 3245 3245
San Cono CT 3 2697 5942
Mirabella Imbaccari CT 7 4912 10854
Caltagirone CT 11 38686 49540
Piazza Armerina EN 13 21886 71426
Niscemi CL 14 27558 98984
Aidone EN 16 4889 103873
Mazzarino CL 17 12145 116018

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NE of Gela (75827 inhabitants)
38 Km NW of Vittoria (63339 inhabitants)
38 Km SE of Caltanissetta (63360 inhabitants)
49 Km NW of Ragusa (73313 inhabitants)
56 Km NW of Modica (54633 inhabitants)
66 Km W of Catania (314555 inhabitants)
72 Km E of Agrigento (59770 inhabitants)
77 Km SW of Acireale (52622 inhabitants)
83 Km W of Siracusa (122291 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.3 2019-09-03
17:44:30		 37.2752 14.4 37 2020-02-28
16:42:09		 Bollettino Sismico Italiano INGV 74000481
Reviewed
Rev100 		ML 1.2 2019-09-03
17:44:30		 37.4715 14.4243 10 2019-09-03
17:58:26		 Sala Sismica INGV-Roma 72089321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-03 17:44:30 ± 0.68
Latitude 37.2752 ± 0.0531
Longitude 14.4000 ± 0.0249
Depth (km) 37 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74000481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 5412
Semi-minor axis of confidence ellipse (meter) 2359
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 187
Circular confidence region, given by single value of horizontal uncertainty (meter) 5410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.66
Epicentral distance of station closest to the epicenter (degree) 0.06025
Epicentral distance of station farthest from the epicenter (degree) 0.71496
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 74000481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-11-24 18:57:03

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 72089321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-03 17:58:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2019-09-03T17:44:52.00 0.3 undecidable manual S 89 66.6777 114 0.06 72
IV.SSY.HHZ. 2019-09-03T17:44:51.73 0.3 undecidable manual S 102 60.8946 117 1.17 48
IV.HLNI.HHZ. 2019-09-03T17:44:45.54 0.6 undecidable manual S 79 42.4242 127 -0.81 43
IV.CSLB.HHZ. 2019-09-03T17:44:45.72 0.1 undecidable manual P 338 79.365 54 1.33 69
IV.HAGA.HHZ. 2019-09-03T17:44:42.50 0.1 undecidable manual P 89 66.6777 114 -0.25 91
IV.SSY.HHZ. 2019-09-03T17:44:42.13 0.1 undecidable manual P 102 60.8946 117 0.18 97
IV.RAFF.HHZ. 2019-09-03T17:44:41.35 0.3 undecidable manual S 210 6.6933 169 0.37 69
IV.HLNI.HHZ. 2019-09-03T17:44:38.79 0.1 positive manual P 79 42.4242 127 -0.73 83
IV.CPTP.HHZ. 2019-09-03T17:44:37.10 0.3 undecidable manual P 305 25.5522 142 -0.55 69
IT.GEA.HGN. 2019-09-03T17:44:37.91 0.1 undecidable manual P 197 25.4523 142 0.27 100
IV.RAFF.HHZ. 2019-09-03T17:44:35.94 0.1 negative manual P 210 6.6933 169 -0.48 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RAFF.HHE. ML:1.0 0.000034045610000000006 0.192 AML other m 2019-09-03T17:44:41.56
IV.RAFF.HHN. ML:1.0 0.00003380560000000001 1.1168 AML other m 2019-09-03T17:44:42.12
IV.HLNI.HHE. ML:1.2 0.000038669670499999996 0.2176 AML other m 2019-09-03T17:44:45.61
IV.HLNI.HHN. ML:1.3 0.0000492102925 0.2176 AML other m 2019-09-03T17:44:45.75
IV.SSY.HHE. ML:1.9 0.00013079755 0.2816 AML other m 2019-09-03T17:44:51.90
IV.HAGA.HHE. ML:1.4 0.00003312208100000001 0.256 AML other m 2019-09-03T17:44:52.47
IV.HAGA.HHN. ML:1.1 0.000019855281500000002 0.1664 AML other m 2019-09-03T17:44:52.52
IV.SSY.HHN. ML:2.0 0.00018055295 0.1408 AML other m 2019-09-03T17:44:52.88
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download